Lockhart City Park Weather Forecast

    • 75
    • 101

    Hot

    • 76
    • 100

    Hot

    • 74
    • 98

    Chance Thunderstorms

    • 72
    • 98

    Hot

    • 73
    • 98

    Hot

    • 74
    • 98

    Hot

Today 15 Sep Caldwell

Mostly sunny. Hot with Highs around 101. South Winds 5 to 10 Mph. Highest heat index Readings up to 106.

Tonight 15 Sep Caldwell

Mostly clear. Lows in the mid 70s. Southeast Winds 10 to 15 Mph, becoming south around 5 Mph after midnight.

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Lockhart City Park Temperature Statistics

September Temperature

San Marcos, San Marcos Municipal Airport (11.8 miles)

  • Lowest 8 September, 2026

    72 °F

  • Average September

    86 °F

  • Highest 2 September, 2026

    102.9 °F

Climate (2021–2026)

San Marcos, San Marcos Municipal Airport (11.8 miles)

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  • Average Low 2021–2026

    60.1 °F

  • Average 2021–2026

    71 °F

  • Average High 2021–2026

    82.6 °F
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